1. Department of Chemistry, University of Manchester, Manchester M13 9PL, U.K.
2. BNLMS, College of Chemistry & Molecular Engineering, Peking University, Beijing 100871, China
3. Neutron Scattering Division, Neutron Sciences Directorate, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
4. Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
5. Diamond Light Source, Harwell Science Campus, Oxfordshire OX11 0DE, U.K.
6. ISIS Facility, STFC Rutherford Appleton Laboratory, Chilton, Oxfordshire OX11 0QX, U.K.
7. School of Chemistry, University of Nottingham, Nottingham NG7 2RD, U.K.